Sarthaks Test
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Find the number of all three digit natural numbers which are divisible by 9.

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Let the three digit numbers divisible by 9 are

108, 117, 126,… ,999

a = 108, d = 9, last term, l = 999

Number of terms,

= 100

Hence, the number of all three digit natural numbers which are divisible by 9 are 100

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